Operating table



' Feb. 4, 1930.

J. FITTING, JR

OPERATING TABLE Filed June 4, 1928 5 Sheets-Sheet l' g a7 a E 50 I .2 g a;

I 9 zz gnvento'a Feb. 4, 1930. Y- J. FITTING, JR 1,746,035

' OPERATING TABLE Filed June 4, 1928 5 Sheets-Sheet 2 gmuantoz Jaaazf 1 2177 5, Jr

Feb. 4, 1930. I J; FlTTlNG, JR 1,746,035

OPERATING TABLE Filed June 4, 1928 3 Sheets-Sheet 5 I Patnted '4,

' 1 O15ERATING*TABLE qippiicat-iaa. r med June 4, 1928. Serial "na zams This invention":relates;to -improveIhents in supporting devices for operatlng fdis testing-tables. I In=inorgrues, hospitals,iundertakmg estab- A lishm'ents and other fip lace's Where operations v or= dissection takes place,jit5is desirable to have a table on whichthe subgec-t s sup;

' ported entr -which be readily adjusted in aVerticaldirection and 'clamped rigidly in place. It'i's also'j'desirable to be able to welgh carefully i the subject While in place on; the

'-table asthis-is 'frequently necessary,

to Pl0 'ItKis the ob 'eCt-jO t this invent on: d-uc-e a supporting device that is intended more particularly for use in connection with dissecting tables and which shall' be so con structed that it oa-n .be readily placed into contact With a scalea-and supported entirely;

I from this scale so that-the" exact-weight of the 'subj ect can-befquiekly and easily determined and "Wh-ieh shall be provided I with 1 meansionconveniently raising the eight of a subject; w

Y 'FigJ Q is a Verticalfisection takeii on iine l the tablerfrom the seale' and ior' securely clan-ipiuig in position 'so as toho lcl itirigid duringthe time; thework is' pe'rforrnedon the The} above and other obj ects Wh-ich inay become apparent as th'e description proceeds v areattained by means of'a construction 'and an arrangementfof parts that, Will now be described detail-and referencefior this pur-i pose will be had to? the accompanying ="dra ings in which th'e preferredembodiment of I thisinventionhas been illustrated and in Whichn. I a r 'Fig. :1 :is a side elevation of the supporting device showing it in positionin am o-penin'g-inz'a'fioory v Fig. 4 is a transverse seen-on taken-on line 4 4, Fig. 1; C p

' I c is a detail showing the liftir'ig-canis and clamping ean s in r 'OPBI'atlYG position i In the drawings numera-l 1' rep'res'e'nts a r lzraooerrmtbrite," =.I1t.',for1DENVER, oo tortenog Ias sieitoiajro .THE PIoNnE fI Ro -Aitn" I, V WfREW-O'BKS GOMPANY,VOF;DENVER, COLQBADCL AQOBPORATIQLLOE..CQLQRADO' fiooriconstruction, numerali-2ithe floor sur fac'eand f numeral {:8 l-t he 5 ceiling. An openrecepti-on of} the isupporting device :Which forms i thew su'bject oflithis invention; "The of which the flange and-"ring iare clamped against the 'fl'oor xand r ceiling? .soxas to hold the LPG/Kits in 'adj'ustedzposition. "uT'he sup- 4 v portingz'melnber 5gis providedat each'end With fouriopenings 11 through which the ca s-12 7 ing 'liasr'beenprovided infthe' floor "for the supportmgidevice CGIlSlStSlOf EL hOillOW 'CyhTL-" project, iThesercams are .connectedby means I of.pivot -pin's-i1;3 to bracketsl 14 thatlare lo- I cated on op c )osite'- sides of the openings .11.

.T-heseicams areteach'provided withlan eccel ltr-1c ream surface 15. and" have outwardly projecti ng arms v1'6. I The correspondingly we 10- cated rtCaIl lS iatLthltOp Land atithe bottom-20f member 'are'zco'nnected-rby means Of:'.CQ11--- ineoting; rods l'Zaiso ithat'i they Will R rotate in amison: 5111 the {illustration shown (there are t-wozpair oficanas aat the topma'ndz two? pair of carhsaat the bottom arranged :rdiametrically in'thesmminenshown inEigure 4. e

' Q jSectirede to 1 the; lower end of supporting V memberfiiaretWo'ipairiofssupporting brackets :Which havexbeen 'indicat'edzaby"-ii umerale18, i

Thesebracketsare'secured to fmembersa-f .by r

- 'ing; ca1ns are? provided: at; one end "With -cam surfaces 22iand have their other ends providedWith upwardly extending ourved portions 23; which are' a'daptedto be-engaged bya'bar 58 1 which serves to rotate them about their :pivots 'in a manner to *be presently described? 'liocated within the supporting member -5 is a hollow cylindrical'pedestal 25; :This pedestal is of such size that its outsidediameter is loo right angular brackets 28, whose upper ends 29 extend horizontally and are provided with three openings 30 arranged in a line. The center one of these openings is threaded and has threadedly connectedtherewith an adjusting screw 31. A plate 32 is provided at each end with a bolt 33which extends upwardly through the outside openings 30 and are provided with clamping nuts 34. The

distance between the horizontal portion 29 of v the bracket and the plates 32 isdetermined by the screw 31 and the plate is held in place by means of the bolts 33. Plates 32 are located directly above the cam surfaces 22 and when cams 21 are rotated the surfaces 22 will engage the inner side of the plates 32 and lift the pedestal.

Located directly beneath the transverse bars 26 are bars 35 which'form part of a scale. This scale has not been shown in detail, but has merely been indicated, as its exact construction is immaterial to the invention described herein. It is,however, considered to be an important part of the combination and will be included as an element in the claims. The bars 35 are so located that when the cams 21 are inthe position shown in'Figure 2, the entire weight of the pedestal will rest on the scale beams 35 so that the weight of the pedestal and of the table 36 that is attached to its upper end can be readily determined. When the cams 21 are 'moved to the position shown in Figure 5, however,'the pedestal and the parts attached to it will be raised a short distance above the scale beams 35 and the weight of the pedestal will then obviously be supported by cams 21 and by the brackets 18 that are attached to the supporting member 5. When the pedestal is in raised position, the cams 12 are rotated in such a way as to engage its outer surface and to hold it rigid with respect to the supporting member. The position of cams 12, when the pedestal is in raised position, has been indicated in Figure 5.

j For the purpose of operating the cams'so as to raise and, lower the pedestal to lock itin raised position and to release it before it is lowered onto the scale, the following operating mechanism has been provided.

Secured to the upper surfaceof flange 8 are two brackets 37. Levers 38 have one end pivotally connected to the brackets 37 by means of bolts 39. Theother ends of levers 38 are bent inwardly towards each other in the manner indicated by numeral 40 and are attached to a connecting angle 41 by means of bolts 42. A foot plate 43 is secured to the angle 41 in the manner shown in Figures 1 and 4.

Referring now more particularly to Figure 1, it will be seen that the levers 38 have a straight portion extending fromthe pivot pin 39 to point 44 where they are curved and are then provided with a downwardly extending straight portion 45, which is connected with a straight portion 46 by means of a curved part 47 This gives the leversthe shape shown in Figure 1 which enables them to clear the supporting brackets 14 over which they pass and brings the foot plate 43 in a position in which it can be conveniently engaged by the foot of the operator. A plate '48 is attached to the foot plate 43 by means of rivets 49 and the inner edge of these plates is adapted to engage the ratchet teeth 50 which are formed in the latching member 51 which is pivoted at'52 to a bracket 53 that is secured to thefiange 8. A spring 54 is secured to the supporting member'5 by means of rivets 55 and engages the latching member 51 and exerts-thereon a force which tends to move this member against the inner edge of plate 48. It is now apparentthat when levers 38 are moved downwardly, the plate 48 will engage the teeth 50 and latch the levers in adjusted position.

Pivotally connected to the straight portion 38 of each lever is the upper end of the con necting rod 56. The lower end of this con necting rod is pivotally attached. at 57 to a bar 58 which extends transversely in the manner shown in Figurel. Secured to each bar 58 are two upwardly extendingbrackets 59 whose upper ends 60 are bent at right angles and are provided with openings for the reception of the rods 17. Nuts 61 that are threadedly connected with rods 17 engage the upper and lower surfaces of part-60 and thereby clamps the brackets 59 to the rods 17 so that-the bars 58 will berigidly connected with rods 17 and therefore these rods and this bar will move as a unit; Brackets 59 are provided with slots 62 for the reception of the pivots 63. Secured to each bar 58 are two spaced brackets 64 whose lower ends 65 are bent outwardly at right angles. Springs 66 have their upper ends connected with the ring 9 by means of eyelets 67 and have their lower ends connected to eye bolts 68 that extendthrough openings in the outwardly extending part 65 of the bracket 64 and are secured to the brackets'by'means ofnuts 69.

The springs 66 are under tension and exert a force which tends to move the bars 58 together with the connecting bars 17 and the connecting rod 56 upwardly. These springs ing bar 51 is moved out of engagement with the plate 48, the levers 38 together with the parts attached thereto, will be moved upwardly into the position shown in Figure 1 are given such a tension that when the latchinemen position fthe'diftijng "ems "and the 7 Tclamping' cams will "occupy ,-the position ing it"po's'sible to independently adjust each of the cams 21 mm respect to the pedestal so as to secure a uniform movement of the pedestal when the camsja're 'goperate'd, the

shown in Figure2 which"will be hereinafter" referred to -as the inoperativepositmn' of the cams and in which position theentire weight ofthe pedestal and the table is supported by the scale beams 35 7 For the purpose of makadj ustin g means 1 shownin Figures 5 and -6 has been rovided.

1 "Let us now assume that the parts are' in the position shown in Figure 2 in'which posit-ion the bars 24 a reo'ut of contact vviththe 1 upwardly extending portions '23 0'1": the'cams 21 and in which-position therefore the pedl 'd le are-supported entirely by th Scale. "I

Bet us now assume that 'operatorputs hisfoot on the foot plate 43 andjexerts a sutficient' downward 'force thereon to move-the levers 38 about their pivots 39. This will cause the c'o'nnecti'ngrods 56 to move downj War'dly'a'n d bars 58'will therefore be moved downwardly so as to co'me into' engagement but are still' free to move downwardly a con- 'siderable distance "Y'Duri ng the 'downv'v'ard movement afterfjthe lifting} cams have been r -:-m'oved into, operative. position,-the"cl'amping earns 12,. will be moved into engagement with theouters'urtaee 5 of the ,ped'estal in' the m'an- *ner shown in Figure5 and Will clamp' the pedestal rigidly {so as to-ho'ld it againstrelative movement withrespect to the supporting Qr-nember 5; 'Inthis position therefore the 7' 1 pedestal andtablewill befirmly held against relative l -movementj so as to be'f absolutely steady "during the? time that? work is; performed;

' When it is' again desired; to weighthe pedestal.andtableiwi'tli its contents, thep' erator merely releases the 7 latching member :51 and lets the levers '38-inove upwardly irfiresponse lto the action of the springs 66. As the bars 58 arewith'draw'n to "a po'sitioni' abovefthe convex portion "(0,the-1iftingxeamswillbev permitted to ro'tate'fin response to the weight of thepede'stal table'ancl will gradually lower the parts into c'ontact'vvith the scale be ms b'yjwhiehftheyjwillbe supported.

I "The further l upward movement of bars 58 and connectingrods fi rotates the cams 12 into the'posit'ion shown in Figure2 in Which position they are entirely "out et contact with the pedestal a-nd the latter therefore rests, en-

tir'ely on the scale beams 'so"that*the exact Weight can bedetermined from the scale readings. v oo Fromthe'above description it will be ap- *parent that 'Iahaveproduced a very simple but substantial mechanism by means of which an operating table can bequickly and conveniently moved into and out of contact with '-a scalesothat the contents of the; operating tablejcan be weighed and"which will positively and rigidly hold the'pa'rts against 1 movement at such times as work is ibeing'performed onthe subject supported by the table. y V a'Having-describedthe invention What is "claimed as {new is: I

'1. 'An operating table supportcomprisingyin' combinatioma scale, a pedestal, a st a-.

tiona'ry support, means forclamping the p'edestal to the support and means for releasing the scale. o Y

2, An operating table] supporting device, comprising, in combination, a "stationary; supportingmember, a scale located beneath the supporting member, a table, a" pedestal connected at tsupper end-With the under surface *the pedestal andfor placing contact-with otatablmsaic'l pedestal being normally-supported on the scale and ineans forraising the pedestal from thescale and for rigidly connecting it with the stationary support.

'3. An operating table supporting device, comprising, 1n combination, a tubular supporting member adapted'to'extend through an opening ina 'flo'or, means for rigidly securing the same to the fioorya scale located below the lower endQof thetubular support? 'ing member, a tubular pedestal extending through :theinte'rior o fthe supporting Imema her, the outside diameter of the pedestalbeing 1 05 smaller than the inside'diameter' o t thesup- I porting member whereby it move axially; :withoutcomin'g in contact'with the supporting member, asc'ale-located below the lower I end of the supporting inemben-theilower'end of the pedestal n'orma'lly. resting on thescale, a table connected with the upper end of the ped'estal' and means for' raising the pedestal 'from'the scale and for clamping it against relative movement with respect to the supporting memb'erh- 4. An operating porting member adapted to extend through an opening in a'fioor, meansfor rigidly securing thesame to the floor, a scale located below table: supporting device, compr1s ng,'in combination, a tubularsupthe lower end of thetubular supporting me n her, is a tubular pedestal; extending through;

the interior" of the supporting member, the outside diameter ofthe pedestal beingsmaller than the inside diameter ofthe supporting member whereby it may move axially without coming inconta'ct with the supporting mem "ber', a sca'le located below the lower end of the a supporting member, the lower end ofthe ped-' estal normally resting on the scale, a table connected with the upper end of the pedestal, means for raising the pedestal from the scale, said means comprising cams secured to the supporting member and means operatively 7 connected with the raising ineansfor clamping the pedestal against relative movement 7 with respect to the supporting member.

5. An operating table supporting device comprising, in combination, a hollow cylindrical supporting member adapted to extend through an opening in a floor, means for securing the supporting member to a floor structure in a vertical position, a tubular pedestal located within the supporting member, a plu-' drical supporting member adapted to extend through an opening in a floor, means for securing the supporting member to V a floor structure in a vertical position, a tubular pedestal located within the supporting mem ber, a plurality of lifting cams carried by the supporting member for lifting the pedestal and moving it longitudinally, a plurality of clamping cams carried by the supporting member, means carried by the supporting member for first moving the lifting cams so as to raise the pedestal and then moving the clamping cams so as to hold the pedestal against relative movement with respect to the supporting member, and a; scale located below the pedestal in position to serve as a support for the latter'when the lifting cams are in inoperative position.

7. An operating table supporting device comprising, in combination, a hollow cylindrical supporting member adapted to extend through an opening in a floor, means for securing the supporting member to a floor structure in a vertical position, a tubular pedestal located within the supporting member, a plurality of lifting cams carried by the supporting member for lifting the pedestal and moving it longitudinally, a. plurality of clamping cams carried by the supporting member, means carried by the supporting member for first moving the lifting cams so as to raise the pedestal and then moving the clamping cams so as to hold'the pedestal against relative movement with respect to the supporting member, means comprismg springs for producing a force tending to move the cam operating means to pedestal loweringand releasing position, and a scale located beneath the pedestalin position to support the latter when it is lowered.

8. An operating table supporting device comprising, in combination, a hollow cylindrical supporting'member, a flanged ring secured to the outside thereof, a tubular cylindrical pedestal located within the supporting member, the outside diameter of the roams pivotally connected with the supporting member, means carried by the pedestal for engaging the upper surface of the lifting cams whereby the pedestal willbe moved verticallywhen the lifting cams are operated, means for simultaneously operating all of the liftingrcams and for simultaneously operating the clampingcams, and a scale associated with the parts for supporting the weight of the pedestal when it is in'its lowermost vp0- sition. I

9; An operating table supporting device comprising, in combination, a hollow cylindrical supporting member, a flanged ring se cured to the outside thereof, a tubular cylindrical pedestal located within the supporting "member, the outside diameter of the pedestal being slightly smaller than the inside diameter of the supporting member so that it may move longitudinally therein without coming 'in contact. therewith, two pair of opposed cams secured to each end ofrthe supporting member, means for interconnecting the similarly positioned cams at the top andat the bottom, two pair of lifting cams pivotally connected with, the supporting -member,

means carried by the pedestal for engaging the upper surface of the lifting cams whereby the pedestal will be moved vertically when the lifting cams are operated, means for simultaneously operating all of the lifting cams and for simultaneously operating the clamping cams, the lifting cams raising the pedestal to its maximum height before the clamping cams become efiective for clamping the pedestal,'and a scale located in the path of thepedestal for supporting the latter when it is released. e

10. An operating table supporting device comprising, in combination, a hollow cylindrical supporting member, a flanged ring secured to the outside thereof, a tubular cylindrical pedestal located within the supporting member, the outside diameter of the pedestal being slightly smaller than the inside diameter of the supporting member so that it may move longitudinally therein without the similarly positioned cams at thetop and at the bottom, two pair of lifting cams pivotally connected with the supporting member, means carried by the pedestal for engaging the upper surface of the lifting cams whereby the pedestalwill be moved vertically when the lifting cams are operated, means 7 a for simultaneously operating all of the lifting cams and for-simultaneously operating the clamping cams, means comprising a plu- "rality of springs for normally holding the clampingcams in inoperative position, and a scale located in'the path of the pedestal and adapted to support the latter when in its lowermost position,

11. :An operating comprising, in combination, ahollow cylindrical supporting member adapted to extend through an opening'in a floor, a ring providedwith an outwardly-extending flange secured to the outer surface of the supporting member, said flange being adapted to rest upon the uppersurface of a floor, a wide l'flat ring surroundlng the supportlng member below the ring, a plurality of bolts con- "necting the ring with the flange, a pedestal located within the supporting member and normallyout of contact therewith, aplurality of clamping cams secured to'each end of the supporting member, means for interconnect- .ing the topcams on one side of a diametrical plane with the bottom cams on the samesid'e two pair of lifting cams connected with the supporting member,'means secured to"the pedestal. for engaging the upper surface of the lifting cams whereby the lifting cams will support the pedestal,

meansforsimultaneouslymovingthe lifting Y cams so as to raise the pedestal and for mov-' ing the clamping cams towards the'pedestal, and a scale located underneath the pedestal for supporting the latter when the lifting cams are-in inoperative position.

upper surface of the lifting cams table supporting device Ythrough a floor,

member, a table supporting located inside of the'cylindrical sup-' I secured 7 to the pedestal for engaging the the liftingcams whereby will support the pedestal, means for simultaneously moving the lifting cam so as to raise thepedestal and for moving the clamping cams towards the pedestal, means for adjusting each of the lifting'cam engaging"meansindependently, a scale 10 cated underneath'the pedestal in position to support the weight; of the latter when the liftingcams are inoperative. v V

'13. Anoperating table support compris-' ing a hollow cylindrical supporting member I adapted, to be secured to and to extend through a floor, a scale located adjacent said supporting member, a table 1 supporting pedestal located inside of the cylindrical sup,-

porting member andspaced therefrom, the

pedestal being normally supported on the scale, andmeans for raising the pedestal from the scale and then clamping it against relative movement" with respect to the cylindrical supporting member.

14. An'operating tablev support comprising a hollow cylindrical supporting member secured to; and to' extend adapted 'to be 'ascale located adjacent said supporting V pedestal porting member and spaced therefrom, the

pedestal-being normally supported on the; scale, 'meanscomprising-a plurality of lift ing cams secured to'the cylindrical support- 1 ing member for rais'ing and lowering, the'i f 10o airs of cams for engaging the sides of the, V pedestal to hold it against movement, with f pedestal, means comprlsing a plurality of] respect to the supporting member and means for simultaneously moving the cams:

In testimony whereof I affixmy si nature.

.. JACOB FITT NQJR.

12. An operating table supporting device comprising, in combination, a hollow cylindrical supporting member adapted to extend through an opening ini a floor, a ring provided with an outwardly extending flange secured to the outer surface of the support- -ing member, said flange being adapted to a below the ring,

restupon'the upper surface of a floor, awide flat ring surrounding the supporting member ing the 'r-lngwith' the flange, a pedestal; lo

" c'ated within the supporting member and normally out of contact therewith, a plurality of "clamping cams secured to eachend ofthe supporting member, means for interconnecting the top cams on one side of a diametrical planewith the nected'with the supporting member, means 12o a plurality of bolts connect- I 

